Home / 13,486.24-18,613.26-9,959.64

Finding the Fourth Proportional to 13,486.24, 18,613.26 and 9,959.64

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Solution

The fourth proportional to 13,486.24, 18,613.26 and 9,959.64 is: 13,745.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.24 : 18,613.26 = 9,959.64 : x
  2. Step 2: Convert to fraction form
    13,486.24/18,613.26 = 9,959.64/x
  3. Step 3: Cross multiply
    13,486.24x = 18,613.26 × 9,959.64
  4. Step 4: Simplify right side
    13,486.24x = 185,381,368.83
  5. Step 5: Solve for x
    x = 185,381,368.83/13,486.24
  6. Step 6: Final answer
    x = 13,745.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.